:root{color-scheme:light dark;--c-bg:#fffdf7;--c-surface:#fff;--c-surface-2:#f6f2e8;--c-text:#1f2a37;--c-muted:#5b6573;--c-border:#e3ddd0;--c-primary:#1c7457;--c-primary-soft:#e3f3ec;--c-on-primary:#fff;--c-accent:#b85a00;--c-accent-soft:#fff0de;--c-danger:#b42318;--c-success:#1c7457;--c-focus:#2563eb;--c-fig-edge:#10161d;--font-sans:system-ui, -apple-system, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "BIZ UDPGothic", "Yu Gothic UI", "Yu Gothic", Meiryo, "Noto Sans JP", sans-serif;--radius:12px;--content-width:44rem;--gutter:16px}@media (prefers-color-scheme:dark){:root{--c-bg:#13171c;--c-surface:#1b2027;--c-surface-2:#232a33;--c-text:#e7ebf0;--c-muted:#a4aebb;--c-border:#313a45;--c-primary:#5cc9a0;--c-primary-soft:#183229;--c-on-primary:#0d1f18;--c-accent:#ffb35c;--c-accent-soft:#3a2a17;--c-danger:#ff8a80;--c-success:#5cc9a0;--c-focus:#8ab4ff}}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;text-size-adjust:100%}body{background:var(--c-bg);color:var(--c-text);font-family:var(--font-sans);overflow-wrap:anywhere;line-break:strict;margin:0;font-size:1rem;line-height:1.8}[hidden]{display:none!important}img,svg{max-width:100%;height:auto}a{color:var(--c-primary);text-underline-offset:.2em}:focus-visible{outline:3px solid var(--c-focus);outline-offset:2px}h1,h2,h3{line-height:1.4}h1{font-size:clamp(1.5rem,5vw,2rem)}h2{margin-top:2.5rem;font-size:clamp(1.25rem,4vw,1.5rem)}h3{margin-top:2rem;font-size:1.125rem}rt{font-size:.55em}.simulator-area{word-break:keep-all;overflow-wrap:anywhere}@media (width<=399px){.simulator-area .btn{padding-inline:.5rem}.simulator-area [role=group]>button{padding-inline:.25rem;font-size:.875rem}}@media (width<=479px){.simulator-area>.container{padding-inline:8px}.simulator-area [role=tabpanel]{padding-inline:12px}.simulator-area .fig-box,.prose figure.fig-box{margin-inline:-8px;padding-inline:4px}}.ruby-word,.unit-name{white-space:nowrap}button{font:inherit}.container{width:100%;max-width:var(--content-width);padding-inline:var(--gutter);margin-inline:auto}.container--wide{max-width:64rem}.visually-hidden{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;position:absolute!important}.skip-link{z-index:100;background:var(--c-surface);border-radius:var(--radius);padding:.5rem 1rem;position:absolute;top:-100px;left:8px}.skip-link:focus{top:8px}.btn{border:2px solid var(--c-primary);border-radius:var(--radius);background:var(--c-primary);min-width:44px;min-height:44px;color:var(--c-on-primary);cursor:pointer;touch-action:manipulation;justify-content:center;align-items:center;gap:.4em;padding:.25rem 1.1rem;font-weight:700;line-height:1.3;text-decoration:none;display:inline-flex}.btn--ghost{color:var(--c-primary);background:0 0}.btn:disabled{opacity:.45;cursor:not-allowed}.prose>:first-child{margin-top:0}.prose table{border-collapse:collapse;width:100%;font-size:.9375rem}.prose .table-scroll{-webkit-overflow-scrolling:touch;margin-block:1em;overflow-x:auto}.prose .table-scroll>table{margin:0}.prose th,.prose td{border:1px solid var(--c-border);text-align:left;vertical-align:top;overflow-wrap:break-word;padding:.5rem .75rem}.prose .nowrap{white-space:nowrap}.prose th{background:var(--c-surface-2);min-width:5.5em}.prose blockquote{border-left:4px solid var(--c-primary);background:var(--c-surface-2);border-radius:0 var(--radius) var(--radius) 0;margin-inline:0;padding:.75rem 1rem}.prose code{font-size:.9em}.internal-notice{z-index:100;border:1px solid var(--c-border);border-radius:var(--radius);background:var(--c-surface);max-width:calc(100vw - 24px);color:var(--c-text);pointer-events:none;padding:.5rem .875rem;font-size:.875rem;line-height:1.5;animation:.2s ease-out internal-notice-in;position:fixed;bottom:12px;right:12px;box-shadow:0 2px 8px #00000026}.internal-notice:empty{box-shadow:none;border:0;padding:0}@keyframes internal-notice-in{0%{opacity:0;transform:translateY(8px)}}@media (prefers-reduced-motion:reduce){.internal-notice{animation:none}*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}
